Dependent variable: &  \multicolumn{4}{c}{Network Connection (=1)}         \\ \cmidrule(lr){2-5}  \\
                    &         (1)        &         (2)        &         (3)        &         (4)        \\
\midrule
ln(Distance to Least-Cost Path)$\times$Year 1870&      -0.085$^{***}$&      -0.069$^{***}$&      -0.067$^{***}$&      -0.076$^{***}$\\
                    &     (0.007)        &     (0.008)        &     (0.008)        &     (0.009)        \\
ln(Distance to Least-Cost Path)$\times$Year 1880&      -0.097$^{***}$&      -0.078$^{***}$&      -0.066$^{***}$&      -0.065$^{***}$\\
                    &     (0.008)        &     (0.009)        &     (0.009)        &     (0.010)        \\
ln(Distance to Least-Cost Path)$\times$Year 1890&      -0.097$^{***}$&      -0.062$^{***}$&      -0.052$^{***}$&      -0.062$^{***}$\\
                    &     (0.008)        &     (0.009)        &     (0.010)        &     (0.010)        \\
ln(Distance to Least-Cost Path)$\times$Year 1900&      -0.106$^{***}$&      -0.071$^{***}$&      -0.063$^{***}$&      -0.074$^{***}$\\
                    &     (0.008)        &     (0.009)        &     (0.009)        &     (0.010)        \\
Local Geography$\times$Year FE&          No        &         Yes        &         Yes        &         Yes        \\
Pre-Rail Controls$\times$Year FE &          No        &          No        &         Yes        &         Yes        \\
Region FE$\times$Year FE&          No        &          No        &          No        &         Yes        \\
\addlinespace[0.1cm]
Observations        &       18152        &       18152        &       18152        &       18152        \\
Mean dep. var.      &       0.163        &       0.163        &       0.163        &       0.163        \\
\bottomrule
